Able to leap boulders in a single bound and then dress up with your favorite jeans, this button down top merges tech and town beautifully. It features a small, invisible zip-secured back pocket and roll up sleeves secured with a hidden tab/button closure. A forward shoulder seam prevents rubbing for comfort under pack or bag straps. Offers UPF 40+ protection in the front and shoulders. 100% Nylon (Front/Shoulders), 95% Polyester / 5% Elastane (Body).